Specialist in ductile iron castings

Custom manufacturing for castings, forgings and machined parts.


Pole line hardware, pump housing, valve body, pipe fittings, wheel, pulley, wheel hub, wheel disc, counter weight, chain link, shredder ring, pump parts, valve parts and so on.

pump housing

Pump Housing

Valve Body

Pipe Fitting

Clevis Rod


Pole Top Bracket

Wheel Hub

End Fitting


Shijiazhuang Doer Metal Product Sales Co., Ltd is a professional supplier of castings, and machined parts in North China. Our company covers an area of 15,000 square meters, the fixed assets is 120 million, 100 employees. Our work team have been in the casting field many years and have rich experience to meet the requirements for our customers. Our main traditional market is North America, Europe, Australia and so on.

Production Process

Sand casting moulding line
Shell mold casting
Investment casting

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Precision machining:
Turning, milling, drilling, grinding,

CNC machining center,
CNC lathes,
CNC milling machine.

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Laboratory Equipment

Spectrum analyzer,
Three-coordinate measuring,
Tensile strength machine, Hardness test machine,
Impact testing machine, Metallographic microscope;

Physical Test: Hardness,
Tensile strength, yeild strength, elongation, charpy test;

Chemical Test: C, Si, Mn, S, P, Cr, Ni, Mo,Ti, etc.

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Available Material

Gray iron (ASTM A48, ASTM A126, ASTM A159),
Ductile Iron Castings (ASTM A536),

Ferritic Ductile Iron Castings Suitable for Low-Temperature Service (ASTM A874),

Austempered Ductile Iron Castings (ASTM A897),

Steel&alloy, stainless steel,

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Surface Treatment

Hot dip galvanizing,
Powder coating,
Electrophoretic coating,

Hydraulic test
Air pressure test
Anti-rust treatment

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Why Choose Us

We Promise to constantly exceed our customers’ expectations in quality, delivery and service!


Quality is as important as our life. To make our products reliable, we have employed professional engineers and introduced a series of quality control system. It is important that we has complete inspection equipment, including spectrum analyzer, tensile strength machine, hardness machine, microscope and so on.


We have our own factory and we are also the representative of our partner factories. Our team have been in the field many years, so we have rich experience. At the same time, we constantly update our equipment to improve work efficiency so that we can offer the best price as well as reliable products for you.


We have introduced the environmental protection equipment to reduce the pollution of the environment, and we upgrade the equipment to reduce the worker’s work intensity.Our commitment to the environment and society that gives us the support and approval from the government, so we can guarantee the continuity of production and make delivery in time.


Custom Manufacturing,
Product Aided Design,
Product Development,
Product Manufacturing,
Component Assembly,
Quality Control,
Custom Packing,
Delivery Service.

Please do not hesitate to contact us to discuss how we can help you.

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Contact us

Doer Metal, a trusted metal supplier working with customers to develop superior custom manufactured parts for a wide variety of industries and applications. Our mission is to provide quality products on time at competitive prices. Do you have questions for us? We’d love to hear them! Please feel free to contact us and we will get back to you as soon as possible.